Some behavioral effects of SP 6-11 hexapeptide C-terminal of substance P injected into the cerebral ventricles in rats.

The effects of the peptide SP 6-11 injected into the lateral brain ventricle in chronic rats on the alimentary behavior in a maze and some spontaneous exploratory reactions were studied. It was shown that the peptide SP 6-11 in doses ranging from 50 to 500 pmol increased only locomotor activity and did not change a number of correct trials in a maze.